FUE Hair Transplantation by Reza P. Azar

Author:Reza P. Azar
Language: eng
Format: epub
ISBN: 9783319759012
Publisher: Springer International Publishing

As the needle is advanced toward the skin and its tip makes contact with the surface of the skin, the surgeon should first stop the needle before penetrating the skin.

If the needle is not precisely sharpened (which is almost always the case due to the manufacturing process), failure to stop the needle would cause local deformation and displacement of the skin before of the forces acting on it. This could cause a relative displacement between the distal and proximal portions of the hair follicle which would also be reflected in a higher transection rate (Fig. 4.39).

Fig. 4.39Local deformation and displacement of the skin due to the high force acting on an imprecisely sharpened extraction needle

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